Improvement in method of uniting sheet-metal plates



To all whom it 'may concern ing tin-ware to construct and operate the saine, I will .describeinasfnllnxvs gr-immet eeew fr. W-

JOsEPHfLE COMTE, or BROOKLYN, New YORK.

Letters Patent No. 85,742, dated Janna/ry l2, 1869.

INIPRO-VEMENT IN METHOD 0F UNITING- SHEET-METAL PLATES.

Be it known that l, JOSEPH LE COMTE, ofthe city of Brooklyn, in the county of Kings, and State of New York, have invented certain novel and useful Improvements in the Mode of Constructing and Forming Metallio Joints-or Sea-ms of Tin or other Sheet-Metal;

and I hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, which are lettered to correspond with and. form a part of the specification.

To enable the public to understand the nature of my invention, and those who are skilled in the art of mak- Figure 1 is a single joint or seam.

Figure 2 is a single lck or rib-joint. Figure 3 is a double joint, for inside or out. Figure 4 is a common lock or roofing-joint. Figure 5 is a common grooved or couutersunk seamA orjoint.

Figure 6 is a single lap-joint or seam, Figure 7 is a right-angle or elbowfjoint. Figure 8 is a curved joint or seam. Figure 9' is a perspective view of my machine, A, fo soldering oruniting the edges of metallic plates by pressure and heat, produced by any suitable power, such as pneumatic, hydrostatic, steam, or by the application of lever canti screw s, as shown inthe drawings, or otherwise arranged.

Figure 10 is a vertical section of fig. 9, showing the body ofthe machine A, with fire-box B and revolving flre-gratebars, also the heated arm or anvil H, with fireiue F, mandrel M,witl1 steel die an'd screws, and chimney D.

'The novelty of my invention does not consist in turning or forming the edges of the tin or metal plates into any desired shape or form, but it-does consist in the process or manner of producing a perfect water, oil, or air-tight seam or joint by pressure, edected by suitable machinery, that will uniformlyv press each part of the. same into a solid mass, without the application of 1 the soldering-iron, or any additional solder or ama gam beyond that which is contained upon the metallic plates themselves when sold in market.

In order to produce a perfect joint or seam by press A ure, I first heat the arm or anvil H, -iigs 9 and 10, tor jaws of the machine, which imparts the necessary The Schedule referred to in these Letters Patent .and making of the same workmanlike manner', at less labor,time, and expenseflf than by any other device ever used for soldering metal plates that a're coated with tin, lead, zinc, or other fusiblealloys; At the same-tin'ie, a great saving of solder.

and a more uniform and stronger union are produced by heating the machinery or the plates, or by heating both,

(if preferred,) preparatory to producing the pressure-v requisite to complete the work.

The arm or anvil H is heated by means ofthe heat A@om the fire-bordjfins. 9 and lhyyhich passeggia through the ilue'Ffihthe arml'H,'to the chimney D, at the-back of the machine A; consequently the arm or anvil becomes heated (by the escaping heat, during its course to the chinmey,)' suflicientl'y hot for soldering-purposes.

When the tin is laid upon theheated arm H, it also becomes hot, and it is firmly pressed upon the hot anvil by means of the steel dies vupon the bottom ofthe vertical mandrel, which is forced down by the action, of the lever c and screw s, (or an equivalent power or-force,) upon the hot plates, so that a propel' union of the edges of the tin plates is produced, while in a What I claim as new, and desire to secure by Let-` ters patent, is-

1. The machine A, with thehollow arm or anvil H, fire-flue F, lire-box and revolving fire-grate B, mandrel .l and dies, screw s, lever c, and chimney D, arranged substantially as described, and for the purpose set forth.

2. Unit-ing the edges of metal plates by combined," heat and pressure, substantially in the manner and for the purpose set foith.

In testimony whereof, I hereunto subscribe my name, in the presence of two witnesses. p

y l, JOSEPH LE COMTE. Witnesses: 'f

.Tous lD. Brumes Jnssn FRYE. 

